RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 13:57:35 +00:00
Code Issues Activity Actions

Kernel/USB: Add some constants for the USBCMD and USBSTS bits

Browse source
This commit is contained in:
Andreas Kling 2020-09-04 18:58:37 +02:00
parent e834c24eea
commit 1254447bd7
1 changed files with 18 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

21
Kernel/Devices/UHCIController.cpp
View file

@ -28,7 +28,21 @@
namespace Kernel { namespace Kernel {
static constexpr u16 UHCI_HOST_CONTROLLER_RESET = 0x0002; static constexpr u16 UHCI_USBCMD_RUN = 0x0001;
static constexpr u16 UHCI_USBCMD_HOST_CONTROLLER_RESET = 0x0002;
static constexpr u16 UHCI_USBCMD_GLOBAL_RESET = 0x0004;
static constexpr u16 UHCI_USBCMD_ENTER_GLOBAL_SUSPEND_MODE = 0x0008;
static constexpr u16 UHCI_USBCMD_FORCE_GLOBAL_RESUME = 0x0010;
static constexpr u16 UHCI_USBCMD_SOFTWARE_DEBUG = 0x0020;
static constexpr u16 UHCI_USBCMD_CONFIGURE_FLAG = 0x0040;
static constexpr u16 UHCI_USBCMD_MAX_PACKET = 0x0080;
static constexpr u16 UHCI_USBSTS_HOST_CONTROLLER_HALTED = 0x0020;
static constexpr u16 UHCI_USBSTS_HOST_CONTROLLER_PROCESS_ERROR = 0x0010;
static constexpr u16 UHCI_USBSTS_PCI_BUS_ERROR = 0x0008;
static constexpr u16 UHCI_USBSTS_RESUME_RECEIVED = 0x0004;
static constexpr u16 UHCI_USBSTS_USB_ERROR_INTERRUPT = 0x0002;
static constexpr u16 UHCI_USBSTS_USB_INTERRUPT = 0x0001;
void UHCIController::detect() void UHCIController::detect()
{ {
@ -59,10 +73,11 @@ UHCIController::~UHCIController()
void UHCIController::reset() void UHCIController::reset()
{ {
write_usbcmd(UHCI_HOST_CONTROLLER_RESET); write_usbcmd(UHCI_USBCMD_HOST_CONTROLLER_RESET);
// FIXME: Timeout
for (;;) { for (;;) {
if (read_usbcmd() & UHCI_HOST_CONTROLLER_RESET) if (read_usbcmd() & UHCI_USBCMD_HOST_CONTROLLER_RESET)
continue; continue;
break; break;
} }